class 类人猿 {
   void  crySpeak(String s){
     System.out.println(s);
   }
}
class People extends 类人猿  {
   void computer(int a ,int b){
    int c= a*b;
    System.out.println(c);
   }
   void crySpeak(String s){
     System.out.println("***"+s+"***");
   }
}
public class Example5_10{ 
   public static void main (String args[]){
     类人猿   monkey;
     People geng = new People();
     monkey = geng;
     monkey.crySpeak("i love this game ");
     People people = (People)monkey; 
     people.computer(10,10);
   }
}
